וְרָעוּ֙ בְּכוֹרֵ֣י דַלִּ֔ים וְאֶבְיוֹנִ֖ים לָבֶ֣טַח יִרְבָּ֑צוּ וְהֵמַתִּ֤י בָֽרָעָב֙ שָׁרְשֵׁ֔ךְ וּשְׁאֵרִיתֵ֖ךְ יַהֲרֹֽג׃
極貧寒的人必得飽足，窮乏人必安然躺臥；我必用饑荒滅絕你的根，他必殺戮你的餘民。
Rashi
And the first born of the poor shall graze In his days, the princes of Israel, who are now poor because of you, shall graze. “Firstborn,” is an expression of princes. Comp. (Ps. 89:28) “Also, I will appoint him My firstborn.”
Ibn Ezra
בכורי דלים The firstborn of the poor. Israel, who had become impoverished sooner than any other nation,—Israel shall enjoy abundance and safety; the opposite fate shall befall the Philistines.